MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated and appears to be junk data, not user-readable content, further supporting the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://synerhu.ru/uplcv?utm_term=can+you+get+groupme+on+mac PDF link annotation
- http://szintai.hu/ckfinder/userfiles/files/tosafefesibajizibaxela.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/8d7529f1708183c58cd9e845f267744d/39026479730.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/suvaxisef.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/ab99aaaab505c0f319623963a6b91962/1804523755.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075f1c4b74a1---80831173670.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0ecdef0d7---raburetijo.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/3aeaffa4236aebd8c1a91c1cc24d1c89/82695739195.pdfIn PDF document text
- http://verynailscm.com/user_img/file/nogivodo.pdfIn PDF document text
- http://aquarium-kochi.com/app/webroot/ckfinder/userfiles/files/74536187472.pdfIn PDF document text
- http://sy-smile.com/upload/files/bapof.pdfIn PDF document text
- http://rayhovietnam.vn/upload/files/fixajogutazezeje.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c14443ab8---2768727578.pdfIn PDF document text
- http://allasclub.com/campannas/file/guxuwikafuzenozu.pdfIn PDF document text
- https://monyetjoget.com/contents/files/zuwavetebifoxila.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096347f2bd5a---pemukubebaxatanarem.pdfIn PDF document text
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/921643279bcc7a02d94e9d78244f6316/9438255348.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ucd5jd3o1c9evgvrcv3fq01fvc/80164337796.pdfIn PDF document text
- http://www.detskaoptika.cz/ckfinder/userfiles/files/bobidegiwibovabulemu.pdfIn PDF document text
- https://netshopnepal.com/userfiles/file/15822491699.pdfIn PDF document text
- https://storycycle.com/ckfinder/userfiles/files/jategapojolafugo.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE221 | 10656 bytes |
SHA-256: 5787b35e6be8b9283c4a81c10afa94e7b13d8b5b55c8d2263a678dbbff406520 |
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font_01_sfnt_off0000fa9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA9A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000112ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112AC | 17332 bytes |
SHA-256: 89bb1bac3d1652fc889f63998e73ba9f2bedd643a043e42aae1884eedf67aa91 |
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